Sewell Soundbox Pro SW-30415 External USB 7.1 Channel Sound Card User Manual

1. Introduction

The Sewell Soundbox Pro SW-30415 is a powerful multi-channel external USB audio device designed to enhance your computer's audio capabilities. It supports true 7.1 channel output and delivers high-quality 24-bit/192kHz audio, meeting Blu-ray audio playback specifications. This device offers versatile input and output options, including RCA, 3.5mm stereo, optical, microphone, and line-in connections, making it suitable for various audio setups. Its durable metal casing and intuitive top-mount volume control with a push-to-mute feature provide both reliability and ease of use. This manual provides detailed instructions for setting up, operating, and maintaining your Soundbox Pro.

2. Package Contents

Please verify that all items listed below are included in your package:

• Sewell Soundbox Pro (SW-30415)
• Mini-USB Cable
• RCA Stereo to 3.5mm Stereo Audio Cable
• Quick Installation Guide
• Installation CD (contains Windows drivers and user manual)

This image displays the Sewell Soundbox Pro unit, a mini-USB cable, an RCA stereo to 3.5mm stereo audio cable, and an installation CD. These are the standard items included in the product package.

3. Product Overview

The Soundbox Pro features a variety of ports and controls for comprehensive audio management. Familiarize yourself with the device's layout:

3.1 Front and Side Panel Connections

This image shows the top-mounted master volume knob, the mini-USB port for connection to a computer, and optical input/output ports. On the side, there are 3.5mm stereo outputs labeled 'SIDE', 'C/SUB' (Center/Subwoofer), and 'REAR', alongside RCA stereo outputs for the front channels.

This image provides a different side view of the Soundbox Pro, detailing the 3.5mm stereo input for 'LINE IN', a 3.5mm microphone input 'MIC IN', and a 3.5mm stereo headphone output 'HP OUT'. The master volume knob is also visible from this angle.

3.2 Key Features

• 7.1 Channel Output: Supports multi-channel audio through front RCA, rear, side, and center/subwoofer 3.5mm stereo outputs.
• High-Resolution Audio: Playback and recording at up to 24-bit/192kHz.
• Versatile Inputs: Includes 3.5mm line-in, 3.5mm microphone input, and optical input.
• Optical Connectivity: Two optical connectors for SPDIF input and output.
• Headphone Output: Dedicated 3.5mm stereo headphone jack.
• Master Volume Control: Top-mount volume wheel with push-to-mute functionality.
• Durable Design: Metal case and connections for enhanced longevity.
• Low-Latency Driver Support: Compatible with ASIO audio drivers for professional audio applications.

4. Setup

4.1 Driver Installation

1. Windows:
   • Insert the provided Installation CD into your computer's optical drive. Follow the on-screen instructions to install the drivers.
   • If your computer does not have an optical drive or if the CD drivers are outdated, visit the official Sewell Direct website or search for "C-Media CM6620A driver" online to download the latest drivers.
   • For advanced users requiring ASIO support, ensure the correct ASIO drivers are installed. Some users may need to manually register ASIO components or use alternative drivers like ASIO4ALL if issues arise with the included software.
2. Mac OS X:
   • The Soundbox Pro is generally plug-and-play compatible with Mac OS X (10.10 Yosemite and later) and typically does not require additional driver installation.
   • Connect the device to a USB 2.0 or 3.0 port. Your Mac should recognize it automatically.

4.2 Hardware Connection

1. Connect the mini-USB end of the provided USB cable to the Soundbox Pro and the standard USB-A end to an available USB 2.0 or 3.0 port on your computer.
2. Connect your speakers, headphones, or other audio devices to the appropriate output ports on the Soundbox Pro:
   • Front Speakers: Use the RCA L/R connectors.
   • Rear, Side, Center/Subwoofer Speakers: Use the corresponding 3.5mm stereo jacks.
   • Headphones: Plug into the 3.5mm 'HP OUT' jack.
   • Optical Output: Connect to a compatible receiver or speaker system using an optical cable.
3. Connect any input devices (microphone, line-level audio source) to the 'MIC IN' or 'LINE IN' 3.5mm jacks, or use the optical input for digital audio sources.

4.3 Audio Configuration (Operating System)

1. Windows:
   • Right-click the speaker icon in the system tray and select "Sound Settings" or "Playback devices".
   • Select the "Sewell Soundbox Pro" or similar entry as your default playback device.
   • Configure speaker setup (e.g., 7.1 Surround) as needed.
   • For recording, select the "Sewell Soundbox Pro" as your default recording device.
2. Mac OS X:
   • Go to "System Preferences" > "Sound".
   • In the "Output" tab, select the "Sewell Soundbox Pro" as your output device.
   • In the "Input" tab, select the "Sewell Soundbox Pro" as your input device.
   • For advanced settings, open "Audio MIDI Setup" (found in Applications/Utilities). Here you can configure channel output, bit depth, and sample rate (e.g., 24-bit/192kHz).

5. Operating Instructions

5.1 Volume Control

• The large knob on the top of the Soundbox Pro controls the master volume. Rotate it clockwise to increase volume and counter-clockwise to decrease volume.
• Press the volume knob down to mute or unmute the audio output.

5.2 Audio Playback

• Ensure the Soundbox Pro is selected as the default playback device in your operating system's sound settings.
• Start playing audio from your computer. The sound will be routed through the Soundbox Pro to your connected speakers or headphones.
• For 7.1 channel audio, ensure your media player and audio content support multi-channel output, and your speaker setup is correctly configured in your operating system.

5.3 Audio Recording

• Connect your microphone to the 'MIC IN' jack or a line-level source to the 'LINE IN' jack.
• Ensure the Soundbox Pro is selected as the default recording device in your operating system's sound settings.
• Open your preferred audio recording software (e.g., Audacity, GarageBand, DAW).
• Select the Soundbox Pro as the input device within your recording software.
• Adjust input levels within your software to prevent clipping and ensure optimal recording quality.

6. Maintenance

• Cleaning: Use a soft, dry cloth to clean the exterior of the Soundbox Pro. Avoid using liquid cleaners or abrasive materials.
• Storage: When not in use, store the device in a cool, dry place away from direct sunlight and extreme temperatures.
• Cable Management: Ensure all cables are connected securely and are not excessively bent or strained to prevent damage.
• Software Updates: Periodically check the Sewell Direct website for updated drivers or firmware to ensure optimal performance and compatibility.

7. Troubleshooting

7.1 No Sound Output

• Check Connections: Ensure the USB cable is securely connected to both the Soundbox Pro and your computer. Verify that speakers/headphones are correctly plugged into the Soundbox Pro.
• Verify Default Device: Confirm that "Sewell Soundbox Pro" is selected as the default playback device in your operating system's sound settings.
• Volume Levels: Check the master volume knob on the Soundbox Pro (ensure it's not muted or turned down) and your computer's system volume.
• Driver Status: For Windows, check Device Manager to ensure the drivers are installed correctly and there are no error symbols. Reinstall drivers if necessary.

7.2 No Sound Input (Microphone/Line-In)

• Check Connections: Ensure your microphone or line-in source is properly connected to the correct input jack.
• Verify Default Device: Confirm that "Sewell Soundbox Pro" is selected as the default recording device in your operating system's sound settings and within your recording software.
• Input Levels: Adjust input levels in your operating system's sound settings or recording software.

7.3 Volume Knob or Mute Button Not Working (Windows)

• Ensure the "Human Interface Device Service" is running in Windows Services. This service is often required for external volume controls to function correctly.
• Verify that the correct drivers are installed. Sometimes generic drivers may not fully support all hardware features.

7.4 Buzzing or Clicking Noise

• Interference: Keep the Soundbox Pro away from potential sources of electromagnetic interference, such as mobile phones, Wi-Fi routers, or power adapters.
• Ground Loop: If the noise persists, it might be a ground loop issue. Try connecting your computer and audio equipment to the same power outlet or using a ground loop isolator.
• USB Port: Try connecting the Soundbox Pro to a different USB port on your computer.

8. Specifications

9. Warranty Information

Sewell products are typically covered by a limited manufacturer's warranty. For specific details regarding the warranty period and terms for your Soundbox Pro SW-30415, please refer to the warranty card included in your product packaging or visit the official Sewell Direct website. The warranty generally covers defects in materials and workmanship under normal use.

Please retain your proof of purchase for warranty claims.

10. Customer Support

If you encounter any issues or have questions not covered in this manual, please contact Sewell Direct customer support:

• Website: Visit the official Sewell Direct website for support resources, FAQs, and contact information.
• Email/Phone: Refer to the contact details provided on the Sewell Direct website or in your product documentation.

When contacting support, please have your product model number (SW-30415) and a detailed description of your issue ready.